Color

#f9ff80

#f9ff80
hex#f9ff80
rgbrgb(249, 255, 128)
hslhsl(63, 100%, 75%)
oklchoklch(0.97 0.15 111.3)
Closest name: Butter (#ffff81)Relative luminance 0.9322

Colors that go with #f9ff80

Plum, Blue and Charcoal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#8680ff

#ffc680 · #b9ff80

#80f9ff · #ff80f9

Split-complementary

Open in tool →

#80b9ff · #c680ff

#80ffc6 · #8680ff · #ff80b9

Contrast

#f9ff80 as textRatioAAAA largeAAAFix
Aaon white
1.07:1failfailfail
  • AA: use #747a00 as the text (4.64:1)
  • AAA: use #575c00 as the text (7.15:1)
  • AA: or shift the background to #707070 (4.63:1)
  • AAA: or shift the background to #545454 (7.08:1)
Aaon black
19.64:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #f9ff80 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#f9ff80 reads as vivid, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f9ff80
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

›analyze #f9ff80 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f9ff80-b9bea2-4e8ddf-262d1f-f1eee9?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md